Nikolafs a



(No Model) N. A. H NES. Board ener.

No. 234,370. Patented Nov. 9,1880.

NrrE STATES ATENT trio? NIKOLAUS A. HOERNES, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO HERMANN RENDTORFF, OF SAME PLACE.

BOARD-FASTENER.

SPECIFICATION forming part of Letters Patent No. 234,370, dated November 9, 1880.

Application filed August 17, 1880.

To all whom it may concern.-

Be it known that I, NIKoL AUS A. HOERNES, of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Board-Fasteners, of which the following is a specification.

In scroll sawing a number of boards or strips are usually secured together and sawed out at the same time, and heretofore, to prevent such boards or strips from moving on each other when they were being shifted,nails have been driven into them or they have been glued together; but when nails are used the boards or strips are injured more or less, and

5 holes are formed which have to be filled with putty in order to make a neat job, and with glue itis often difficult to separate the boards or strips, and in doing so the surfaces are frequently injured.

Now it is the object of my invention to produce means for securing two or more boards or strips temporarily together for scroll-sawing and other purposes, which will permit of the boards being secured and separated in 5 much less time than heretofore, will not injure the surfaces of such boards or strips, and will at the same time be simple and cheap in construction.

My inventionconsists in the peculiar contrivance devised by me for this purpose, as fully hereinafter explained, and pointed out by the claim.

In the accompanying drawings, forming a part hereof, Figurelis an enlarged perspective view of my board-fastener; Fig. 2, 'a crosssection of two boards, showing my boardfastener in position as ordinarily used, and Fig. 3 a cross-section of two boards or strips, showing the position of the fastener when also used as a guide.

My board fastener is a plate, A, of thin sheet metal, which can be of any suitable size, but may be made about one-half of an inch square. The ends of this plate are divided or split, preferably, in three parts, two of which at each end are turned in one direction at right angles to the plate, and the third is turned in the opposite direction. These turned parts form projecting brads or teeth the surface of the boards or strips lengthwise (No model.)

of the grain. These teeth may be beveled off or sharpened, before or after they are turned, at right angles to the plate A, but this is not considered essential.

Now, when boards or strips are to be temporarily secured together for scroll-sawing or any other purpose a sufficient number of my board-fasteners are laid on one board with the teeth running with the grain, and then the next board is placed upon such board-fasteners, and by tapping the upper board with a mallet or pressing upon it the two boards will be secured together, so that they cannot be shifted on each other horizontally. Another board can be secured upon the upper board, if desired, and any number of boards can thus be secured together. After the sawing is completed the boards can be readily separated and the boardfasteners preserved for future use. Itwill be found that the teeth a Z) only leave indenta tions in the surface of the boards or strips running lengthwise of the grain, which indentations are filled by the varnish, and do not injure the appearance of the surface.

The board-fastener can, in addition, be used as a guide for easily and quickly placing and securing the edges of boards or strips correctly in line with each other. This is done by placing the desired number of fasteners on the lower board or strip, with the teeth at one end projecting over that edge of the board or strip that it is desired to bring in line with the edge of an upper board. The upper board or strip is laid on the fasteners with its edge against the outer upwardly-projecting teeth, when by striking or pressing on the upper board or strip the two will be secured together. In this same way, it will be understood, any number of boards or strips can be secured together.

What I claim as my invention is- The board-fastener described, for the purpose set forth, composed of plate A, having flat teeth a I), turned in opposite directions at 5 right angles to the plate A and entering the boards in the direction of the grain, substantially as described and shown.

NIKOLAUS A. HOERNES.

Witnesses:

F. W. KASEHAGEN, H. A. BAUMANN. 

